Portfolio Details
as of 02/27/2015

Average Coupon - The weighted average annual rate of interest on a bond’s face value that the issuer agrees to pay the holder until maturity for all the securities in a portfolio.

Average Maturity - The length of time until the average security in a portfolio will mature or be redeemed by its issuer in proportion to its dollar value. Indicating a portfolio’s sensitivity to general market interest rate changes, a longer average maturity implies greater relative portfolio volatility.

Effective Duration - The change in the value of a fixed income security that will result from a 1% change in interest rates, taking into account anticipated cash flow fluctuations from mortgage prepayments, puts, adjustable coupons, and potential call dates. Duration is expressed as a number of years, and generally, the larger a duration, the greater the interest-rate risk or reward for a portfolio’s underlying bond prices. Where applicable, securities, such as common or preferred stock, convertible bonds and convertible preferred stock, ETFs and ADRs and futures, are excluded from these calculations.

Credit Quality Distribution as of 02/27/2015

A-1/MIG1

A-2/MIG2

AAA

AA

A

BBB

< BBB

Not Rated

Ratings provided by Standard & Poor's and Moody's. Where S&P and Moody's rate a security differently, Lord Abbett uses the higher credit rating. For a security with both a short-term and a long-term rating, Lord Abbett has categorized the security in the chart above using its short-term rating only. Ratings range from AAA (highest) to D (lowest). Bonds rated BBB or above are considered investment grade. Credit ratings BB and below are lower-rated securities (junk bonds). High-yielding, non-investment-grade bonds (junk bonds) involve higher risks than investment-grade bonds. Adverse conditions may affect the issuer's ability to pay interest and principal on these securities. A portion of the portfolio's securities are not rated. A-1/MIG1, A-2/MIG2 and A-3/MIG3 designations denote securities with less than a three-year maturity as well as superior (A-1/MIG1), strong (A-2/MIG2) and favorable (A-3/MIG3) credit quality. The credit quality breakdown is not an S&P credit rating or an opinion of S&P as to the creditworthiness of such portfolio. Credit quality allocation reflects market value weightings.

Portfolio Positioning as of 12/31/2014

We continue to focus on higher-couponbonds priced at premiums in order to take advantage of their attractive relative value. In addition, higher-coupon bonds offer greater protection from rising interest rates than lower-coupon bonds.

We continue to selectively increase weightings in lower-qualitybonds due to attractive credit spreads and solid underlying fundamentals.

The portfolio continues to maintain an overweight to revenue bonds, including healthcare and transportation bonds, relative to its benchmark, the Barclays 1-15 Year Municipal Bond Index, given the dedicated income stream and favorable return prospects.

The portfolio is overweight bonds with maturities of six to eight years, relative to its benchmark, rather than a more barbelled structure due to the steepness of the yield curve and total return potential.

Holding

Coupon

Maturity

Assets

Las Vegas Valley Water District

0.060%

06/01/2036

0.7%

California State General Obligation

5.000%

02/01/2022

0.7%

Buckeye Tobacco Settlement Fin Auth

5.125%

06/01/2024

0.6%

California State Dept of Water - Power Supply

5.000%

05/01/2019

0.6%

California State General Obligation

5.000%

09/01/2021

0.5%

New York Dorm Auth - Personal Income Tax

5.000%

03/15/2024

0.5%

New York State UDC - Personal Income Tax

5.000%

03/15/2026

0.5%

New York Dorm Auth - Personal Income Tax

5.000%

12/15/2019

0.5%

New York State Thruway Authority

5.000%

01/01/2031

0.5%

Katy Independent School District

0.765%

08/15/2036

0.5%

% of Total Assets

5.6%

Aggregate holdings are updated monthly, 30 days after month end. Aggregate holdings are presented to illustrate examples of the securities that the Fund has bought and the diversity of the areas in which the Fund may invest, and may not be representative of the Fund's current or future investments. The figures presented are as of the date shown and may change at any time.

Aggregate holdings are updated monthly, 30 days after month end. Aggregate holdings are presented to illustrate examples of the securities that the Fund has bought and the diversity of the areas in which the Fund may invest, and may not be representative of the Fund's current or future investments. The figures presented are as of the date shown and may change at any time.

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Important Information

A Note about Risk: The value of an investment in the Fund will change as interest rates fluctuate in response to market movements. When interest rates rise, the prices of debt securities are likely to decline, and when interest rates fall, the prices of debt securities tend to rise. A portion of the income derived from the Fund's portfolio may be subject to the alternative minimum tax. Any capital gains realized may be subject to taxation. Federal, state, and local taxes may apply. There is a risk that a bond issued as tax-exempt may be reclassified by the IRS as taxable, creating taxable rather than tax-exempt income. In addition, the Fund is subject to other types of risks such as call, credit, liquidity, interest rate, and general market risks. The Fund may invest in Puerto Rico and other U.S. territories, commonwealths, and possessions, and may be affected by local, state, and regional factors. These may include, for example, economic or political developments, erosion of the tax base, and the possibility of credit problems. Shareholders should consult with their tax advisors for more specific information on taxation.

Performance data quoted is historical. Past performance is not indicative of future results. Current performance may be higher or lower than the performance quoted. The investment return and principal value of an investment in the Fund will fluctuate so that shares, on any given day or when redeemed, may be worth more or less than their original cost. To obtain performance data current to the most recent quarter-end, go to quarter ending performance on our Website or call Lord Abbett at (888) 522-2388.

Class A Except as noted below, returns with sales charges reflect a maximum sales charge of 5.75% for equity funds, 2.25% for all tax-free income funds, fixed income funds and multi-asset class funds. There are also ongoing 12b-1 service fees (and, in certain cases, distribution fees).

Class A Shares purchased subject to a front-end sales charge have no contingent deferred sales charge (CDSC). However, certain purchases of Class A shares made without a front-end sales charge may be subject to a CDSC of 1% if the shares are redeemed before the first day of the month in which the one year anniversary of the purchase falls. The CDSC is not reflected in the performance with maximum sales charge.

With Sales Charge - Returns with sales charges reflect applicable fees and expenses and include all distributions reinvested.

Without Sales Charge - Returns shown are without sales charges and have all distributions reinvested. If a sales charge had been deducted, the results would have been lower.

Returns shown at less than a year reflect aggregate total returns.

Double-Digit Returns - instances of high double-digit returns were achieved primarily during favorable market conditions and may not be sustainable over time.

Effective June 28, 2013, the Fund adopted the Barclays 1-15 Year Municipal Index as its primary benchmark.

The Barclays 1-15 Year Municipal Bond index is the 1-15 year component of the Municipal Bond index. The Barclays Municipal Bond Index is a rules-based, market-value-weighted index engineered for the long-term tax-exempt bond market. The index is a broad measure of the municipal bond market with maturities of at least one year. To be included in the index, bonds must be rated investment-grade (Baa3/BBB- or higher) by at least two of the following ratings agencies: Moody's, S&P, Fitch. If only two of the three agencies rate the security, the lower rating is used to determine index eligibility. If only one of the three agencies rates a security, the rating must be investment-grade. They must have an outstanding par value of at least $7 million and be issued as part of a transaction of at least $75 million. The bonds must be fixed rate, have a dated-date after December 31, 1990, and must be at least one year from their maturity date.

The Fund's portfolio is actively managed and portfolio characteristics, such as individual holdings and sector weightings may change significantly over time. The portfolio data is for information only. It does not constitute a recommendation or an offer for a particular security or fund, nor should it be taken as a solicitation or recommendation to buy or sell securities or other investments.

Morningstar proprietary ratings reflect historical risk-adjusted performance. For each fund with at least a three-year history, Morningstar calculates a Morningstar RatingTM based on a Morningstar risk-adjusted return measure that accounts for variation in a fund's monthly performance (including the effects of sales charges, loads and redemption fees), placing more emphasis on downward variations and rewarding consistent performance. Load-waived ratings do not include any front-end sales charges (which are only available for certain defined contribution plans and certain mutual fund advisory programs) and should only be considered by investors who are not subject to sales loads. Not all funds with a load-waived rating may waive their front-end load. An investor should check with their advisor to determine if they are eligible to purchase the load-waived Class A share. The top 10% of the funds in an investment category receive 5 stars, 22.5% receive 4 stars, 35% receive 3 stars, the next 22.5% receive 2 stars, and the bottom 10% receive 1 star. (Each share class is counted as a fraction of one fund within this scale and rated separately, which may cause slight variations in the distribution percentages). The Overall Morningstar rating is a weighted average of funds' three-, five-, and 10-year (as applicable) ratings. Past performance is no guarantee of future results. Morningstar Rating is for the Class A share only; other classes may have different performance characteristics.